56863178503 has 2 divisors, whose sum is σ = 56863178504. Its totient is φ = 56863178502.

The previous prime is 56863178423. The next prime is 56863178521. The reversal of 56863178503 is 30587136865.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56863178503 - 2²¹ = 56861081351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56863178563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28431589251 + 28431589252.

It is an arithmetic number, because the mean of its divisors is an integer number (28431589252).

Almost surely, 2^56863178503 is an apocalyptic number.

56863178503 is a deficient number, since it is larger than the sum of its proper divisors (1).

56863178503 is an equidigital number, since it uses as much as digits as its factorization.

56863178503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 56863178503 in words is "fifty-six billion, eight hundred sixty-three million, one hundred seventy-eight thousand, five hundred three".